var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var session = require("express-session")

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var menuRouter = require('./routes/menu');
var cityRouter = require('./routes/city');

var app = express();
// session 配置
app.use(session({
  secret: "dfjdlfajdfafdafadfadfaf",
  cookie: {
    maxAge: 1000 * 60 * 60 * 24
  },
  resave: true,
  saveUninitialized: true
}))
/* 后台开允许跨域 */
app.all('*', (req, res, next) => {
  const {
    origin,
    Origin,
    referer,
    Referer
  } = req.headers;
  const allowOrigin = origin || Origin || referer || Referer || '*';
  res.header("Access-Control-Allow-Origin", "*");// *允许所有域访问
  res.header("Access-Control-Allow-Headers", "Content-Type, Authorization, X-Requested-With");
  res.header("Access-Control-Allow-Methods", "PUT,POST,GET,DELETE,OPTIONS");
  res.header("Access-Control-Allow-Credentials", true); //可以带cookies
  res.header("X-Powered-By", 'Express');
  if (req.method == 'OPTIONS') {
    res.sendStatus(200);
  } else {
    next();
  }
});
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({
  extended: false
}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter); // login method post
app.use('/users', usersRouter);
app.use('/menu', menuRouter);
app.use('/city', cityRouter);

module.exports = app;